Murdock, J. W. (1978). Current knowledge on numerical data indexing and possible future developments: Final report, April 1978. Directorate for Scientific, Technological and International Affairs Division of Information Science and Technology.
Lua i Stíl Chicago (17ú heag.)Murdock, John W. Current Knowledge on Numerical Data Indexing and Possible Future Developments: Final Report, April 1978. Rockvill, MD: Directorate for Scientific, Technological and International Affairs Division of Information Science and Technology, 1978.
Lua MLA (9ú heag.)Murdock, John W. Current Knowledge on Numerical Data Indexing and Possible Future Developments: Final Report, April 1978. Directorate for Scientific, Technological and International Affairs Division of Information Science and Technology, 1978.